code: def occupied(self, val):
      assert isinstance(
          val, bool
      ), "Occupied must be True or False, but {} received.".format(val)
      print("Here Check 3 yy")
      with self._lock:
          self._occupied = val
  
imports: from subprocess import Popen, PIPE
  from threading import Thread, Lock
  from queue import Queue
  from time import sleep
  from sys import stderr
  import re
  import json
label_desc: Use image node_id 3 for calling the RemoteController obj's underlying member method code with example usage: obj.occupied(val) without return types